a.
What is a possible cause for a decrease in ecosystem productivity?
an increase in the biodiversity of the ecosystem
b. a decrease of the biodiversity of an ecosystem
C. the biodiversity of an ecosystem experiencing no change
d. an ecosystem becoming more stable

Answers

Answer 1

A decrease of the biodiversity of an ecosystem is one of the prime cause for a reduction in ecosystem productivty.

What is ecosystem productivity?

Productivity in ecology signifies towards the rate of generation of biomass in an ecosystem. Generally it is articulated in units of mass per volume per unit time. A decrease in biodiversity is one of the major cause of a decrease in ecosystem productivity.

The loss of biodiversity generally takes place by five prime factors:

Invasive speciesHabitat lossOverexploitationClimate changePollution

A reduction in biodiversity results in a decrease in the stability of the ecosystem. As a change to one organism will exhibit a greater influence on the entire ecosystem.

Thus, the correct answer is option b.

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Answer 2

Answer: B

Explanation: edge 2020


Related Questions

Copper sulfide is found written as both CuS and Cu2S. Why are there two forms for writing this chemical formula?

SELECT AN ANSWER

This is an example of a combination reaction: CuS is the halfway stage, before the second copped atom joins the molecule.


Copper is a transition metal with two possible ionic states (copper I, or 1+, and copper II, or 2+).


This is a synthesis reaction and so the formula will continue changing until all the atoms have conglomerated.


One of the versions is a mistake, the correct form should be Cu2S.

Answers

Answer:

option 3

Explanation:

Copper is a transition metal with two possible ionic states (copper I, or 1+, and copper II, or 2+).

There are two forms for writing the chemical formula because copper is a transition metal with two possible ionic states (copper I, or 1+, and copper II, or 2+)

Copper is a transition metal with variable oxidation states. The oxidation states of copper is what determines the name of CuS and Cu₂S.

Now, we shall determine the oxidation states of copper in each compound.

For CuS:

CuS = 0

S = –2

Cu =?

Cu + S = 0

Cu + (–2) = 0

Cu – 2 = 0

Collect like terms

Cu = 0 + 2

Cu = +2

For Cu₂S:

Cu₂S = 0

S = –2

Cu =?

2Cu + S = 0

2Cu + (–2) = 0

2Cu – 2 = 0

Collect like terms

2Cu = 0 + 2

Divide both side by 2

Cu = 2/2

Cu = +1

From the calculations made above, we can see that copper has oxidation state of +2 in CuS and +1 in Cu₂S

Thus, we can conclude that Copper is a transition metal with two possible ionic states and this accounts for the different names of CuS and Cu₂S

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In mitosis, two diploid daughter cells are formed. In other words, if you start with 46 chromosomes, you end up with 46 chromosomes.

Answers

Answer:

No

Explanation:

In mitosis you always end up with 4 daughter cells, althpugh it is true that theu start with 46 chromosomes and end up with 46 chromosomes.

According to the law of conservation of mass, which statement is true?
Question 1 options:
Mass can be created by chemical reactions.
The mass of the products in a chemical reaction do not have to equal the mass of the reactants.
Mass can neither be created nor destroyed.
Mass can only be destroyed by physical transformations.

Answers

Answer:

3 Mass can neither be created nor destroyed.

Explanation:

Not number 1 because The law of conservation of mass states that mass in an isolated system is neither created nor destroyed by chemical reactions or physical transformations. Not 2 One of these is called the law of conservation of mass , which states that during a chemical reaction, the total mass of the products must be equal to the total mass of the reactants.   not 4 go back to number 1 and look why so its 3

What is the definition of trade winds ?

Answers

a wind blowing steadily towards the equator from the northeast in the northern hemisphere or the southeast in the southern hemisphere, especially at sea. Two belts of trade winds encircle the earth, blowing from the tropical high-pressure belts to the low-pressure zone at the equator.

Answer:

a wind blowing steadily towards the equator from the northeast in the northern hemisphere or the southeast in the southern hemisphere, especially at sea. Two belts of trade winds encircle the earth, blowing from the tropical high-pressure belts to the low-pressure zone at the equator.

I got it from the internet

Explanation:

Which jobs does an animal's skeletal system do?

Answers

Answer:

"The Skeletal system has three very important jobs: Support, protection, and movement. Just think, if we did not have a skeletal system for support we would be just like a blob of Jell-O. The bones also protect many organs, and also the brain."

Explanation:

Genetics Problem Solving Chapter 25

Answers

Answer:

See the answer below

Explanation:

1.      Tt   x   Tt

   TT  Tt   Tt   tt

Assuming that T is dominant over t:

Genotype ratio = 1TT:2Tt:1tt

Phenotype ratio = 3:1

2.     Rr   x   Rr

    RR   Rr   Rr   rr

Assuming that R is dominant over r:

Genotype ratio = 1RR:2Rr:1rr

Phenotype ratio = 3:1

3.  Assuming that green (G) is dominant over the other color (g). Heterozygous green would be Gg

        Gg   x   Gg

     GG   Gg   Gg   gg

Genotype ratio = 1GG:2Gg:1gg

Phenotype ratio = 3:1 (green ratio the other color)

4. Assuming that green (G) is dominant over the other color (g) as above:

  homzygous green plant = GG; heterozygous green plant - Gg

      GG   x   Gg

   GG   Gg   GG   Gg

Genotype ratio = 1GG:1Gg

Phenotype ratio = 100% green

5. Assuming that tall (T) is dominant over short (t)

Homzygous tall plant = TT

short plant = tt

         TT   x   tt

       Tt   Tt   Tt   Tt

Genotype ratio = 100% Tt

Phenotype ratio = 100% tall

Place the items in order from highest to lowest degree of internal organization. tissue organ system organ cell ↓ ↓ ↓

Answers

Answer:

The images of parts of the human nervous system in order from lowest to highest degree of internal organization are as follows: cell, tissue, organ and system. The cells are produced to form the tissues in the body and it is produced for an organ to be produced.

Answer: cell, tissue, organ and system.

Explanation:

Pls help i don't understand :( Will Mark Brainliest!! + 25 Points!!]

Answers

Answer: A

Explanation:

If you’re good at this could you help me please?

Answers

Answer:

I'm pretty sure its D or B

I will give a Brainlyist.

Which statements are true about
ribosomes?
.They are membrane bound
.They make proteins
.They can float free or be connected to Rough
.Endoplasmic Reticulum

Answers

Answer:

They make proteins, They can float free or be connected to endoplasmic reticulum

ah the person above had the answer! hope you have a good day!

If anyone knows this please let me know and explain??

Answers

Answer:

I am pretty sure the answer is Melting

Explanation:

C) Evaporating

The molecules in the first state are liquid (you can tell how they aren’t in a fixed structure) break apart randomly and evaporate into a gas

Brown-eye color is dominant and blue-eye color is recessive. A brown-eyed man marries a blue-eyed woman and they have a son that has Green eyes. SC.912.1.16.1
What Pattern of inheritance is that?
sex-linked
Co-dominant
Incomplete dominance
O polygenic recessive

Answers

Answer: Polygenic recessive

Explanation: Because polygenic dominance describes a relationship between the alleles of a polygenic trait where some alleles are dominant and others are recessive.

This is the pattern of inheritance of Polygenic recessive. So, the correct option is (D).

What is Polygenic inheritance?

Polygenic inheritance can be described as the inheritance of traits that are governed by different genes and not just a single gene, and can also be referred to as non-Mendelian inheritance, where traits run like a bell. distributes the sizes and shows the different combinations such as dominant and recessive alleles.

Polygenic traits express several different phenotypes, or displayed characteristics where this inheritance is a type of incomplete dominance inheritance, where the expressed phenotype is a mixture of inherited traits.

Thus, this is the pattern of inheritance of Polygenic recessive. So, the correct option is (D).

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Renewable energy is energy from sources that
a.are not used up faster than they are formed.
b.humans can manufacture.
c.will take years to deplete.
d.were once living organisms

Answers

Correct answer - B Humans can manufacture.

Why? - A renewable energy source means energy that is sustainable - something that can't run out, or is endless, like the sun. ... It means sources of energy that are alternative to the most commonly used non-sustainable sources - like coal. HUMANS can be considered renewable energy sources and batteries at the same time. Unlike fossil fuels, human power can be a clean energy source, which produces little or no air pollution and soil contamination.

What are the advantages of offspring (babies) that are derived from Asexual
reproduction?

Answers

Answer:

it takes less time to produce so more babies and no mutations

Explanation:

Which stage of the cell cycle happens directly after cytokinesis?
A
mitosis
B
M phase
C
anaphase
D
interphase

Answers

The answer is D interphase

The cell cycle phase that occurs immediately following cytokinesis is the interphase, which is in Option D because the interphase consists of the G1, S, and G2 and is constitutively called the preparatory phase.

What is the cell cycle's importance?

The cell cycle consists of the interphase and the division phase, and in the interphase, the cell spends most of the time preparing itself for the cell division and consists of the G1, S, and G2 phases. Following the interphase, the cell enters the division phase, which is mitosis or meiosis, and divides, with the daughter cells potentially entering the cell cycle via the interphase.

Hence, the cell cycle phase that occurs immediately following cytokinesis is the interphase, which is in Option D because the interphase consists of the G1, S, and G2 and is constitutively called the preparatory phase.

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The rate limiting reaction of aerobic respiration involves the phosphorylation of __________ by the enzyme _______ . The rate at which this enzyme makes product is ___________when ATP levels rise because the molecule ___________binds to an _________ site on the enzyme and acts as a(n)_________ . When ATP levels fall ________ binds to ________of ____________. This interaction leads to an increase of cellular ___________ , so that this is a n example of a ___________ feedback loop.

Answers

Answer:

Explanation:

The rate limiting reaction of aerobic respiration involves the phosphorylation of fructose phosphate by the enzyme phosphofructokinase. The rate at which this enzyme makes product is [increased, decreased] when ATP levels rise because the molecule ATP binds to an allosteric site on the enzyme and acts as a direct inhibitor. When ATP levels fall AMP binds to the allosteric site of phosphofructokinase. This interaction leads to an increase of cellular ATP, so that this is an example of a negative feedback loop.

The rate limiting reaction of aerobic respiration involves the phosphorylation of fructose phosphate by the enzyme phosphofructokinase. The rate at which this enzyme makes product is decreased when adenosine triphosphate (ATP) levels rise because the molecule adenosine triphosphate (ATP) binds to an allosteric site on the enzyme and acts as a direct inhibitor. When adenosine triphosphate (ATP) levels fall, AMP binds to the allosteric site of phosphofructokinase. This interaction leads to an increase of cellular adenosine triphosphate (ATP), so that this is an example of a negative feedback loop.

What is an aerobic respiration?

An aerobic respiration can be defined as a chemical and biological process that involves the use of oxygen in living organisms to make energy (ATP) from carbohydrates (sugars) during cellular respiration.

This ultimately implies that, an aerobic respiration can take place or occur in the presence of oxygen.

What is an enzyme?

An enzyme can be defined as a biological catalyst that typically speeds up (accelerates) the rate of a chemical reaction, especially by lowering the activation energy of its chemical reactants.

Factors that affects an enzyme

There are four (4) main factors that affect the actions and the rate of an enzyme and these include the following:

The logarithmic concentration of hydrogen (pH).Temperature.Cofactors.Allosteric inhibitors.

Read more on here:

What gas in the atmosphere helps to protect us from that radiation

Answers

Answer:

ozone

Explanation:

All living organisms on the earth are protected from the harmful radiation coming from the sun by the ozone gas present in the stratosphere. Ozone gas is formed by the action of sunlight only oxygen of the air in the atmosphere.

Answer:

ozone gas

Explanation:

I need the word scramble part only

Answers

1. Paralysis that’s all I know I’m sorry

Answer:

look it up  or fail

Explanation:

The distribution of the height of humans is a normal distribution. There are some very y'all people, and some very short people, but most people are in the middle. What is most likely true about this trait?

Answers

Answer:

humans normal distribution

Explanation

sorry

Which sustainable practice is paired correctly with its impact on the environment?

Answers

Answer:

Setting irrigation systems to run longer results in a reduction of water use is an example of a correct pairing of a sustainable practice and its impact to the environment.

Answer:

c

Explanation:

Use the context of the urinary system to explain the term osmoregulation

Answers

Answer:Kidneys regulate the osmotic pressure of a mammal's blood through extensive filtration and purification, in a process known as osmoregulation. Kidneys filter the blood; urine is the filtrate that eliminates waste from the body via the ureter into the bladder.

Explanation:

Kidneys regulate the osmotic pressure of a mammal's blood through extensive filtration and purification, in a process known as osmoregulation. Kidneys filter the blood; urine is the filtrate that eliminates waste from the body via the ureter into the bladder.

How could biotechnology lead to a decrease in the use of pesticides?

Answers

Plants can be genetically engineered through the use of biotechnology to be less susceptible to insects. This trait will make pesticide use less necessary.

This is the sample answer on edge.

This method combines the genetic productivity enhancement of plants with the management of their hazardous organisms.

How is biotechnology used?

Typically, agricultural biotechnology is utilized to boost plant production productivity to reduce the use of pesticides.

In agriculture by applying biotechnology, pest management and the use of pesticides will be reduced for modified plants.

The emergence of insect-resistant plants will be accelerated by technological advancements, and with an improved grasp of biotechnological processes, the acceptance of biotechnology goods might grow.

Therefore to reduce paste management and make crop resisitance for paste biotechnology is used.

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How would an increase in surface temperatures in the pacific affect sea otters and why would this happen?

Answers

Explanation:

How would an increase in surface temperatures in the pacific affect sea otters and why would this happen?

The water that sea otters live in is chilly, ranging from 35 to 60 degrees Fahrenheit—much too cold for humans. Otters don't have blubber to keep them warm like other marine mammals. Instead, they rely on their thick fur coat to maintain a constant body temperature of 100 degrees Fahrenheit.

Describe the cause and symptoms of Down syndrome.

Answers

The causes of down syndrome are:

The symptoms of down syndrome are:

Attached above..

So meiosis produces egg or sperm

Answers

the answer is eggs
it produces eggs

Answer:

Your answer is correct, it is eggs

Explanation:

In meiosis in females is called oogenesis while in males it is called spermatogenesis so it does produce a little bit of both because it needs to produce the chromosomes for the offspring half male and half female. It also produces 4 gamete cells and around that time can form the offspring which then can form whatever reproductive organ either it's going to be a girl or a boy. But in meiosis, it mostly produces the eggs because the sperm fertilizes the egg hence the whole Meiosis I and II processes.

Hope this helped :)

Help plz this is fast

Answers

Answer:

mold is the answer to the question

hich two phrases in this passage point to the meaning of the word stealthily?

The question in her mind, and one not easily solved, now was, 'How can I get away?' So, as was her usual custom, she 'told God she was afraid to go in the night, and in the day every body would see her.' At length, the thought came to her that she could leave just before the day dawned, and get out of the neighborhood where she was known before the people were much astir. 'Yes,' she said, fervently, 'that's a good thought! Thank you, God, for that thought!' So, receiving it as coming direct from God, she acted upon it, and one fine morning, a little before day-break, she might have been seen stepping stealthily away from the rear of Master Dupont's house."

direct from God
get away
bulk and weight
usual custom
before day-break

Answers

Answer:

B and E

Explanation:

Because thats what stealthy means

The meaning of the word stealthily is get away and before day-break.

What is stealthily?

You can enter a building discreetly at times, such as when users creep about quietly in the darkness to prevent being seen.

What is get away?

Get away means flee from someone or somewhere;

Hence, The meaning of the word stealthily is get away and before day-break.

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what is the result of cell that undergo division by mitosis

Answers

Answer:

mitosis results in two identical daughter cells ..hope this helped!

Explanation: a eukaryotic cell undergoes a carefully coordinated nuclear division that results in the formation of two genetically identical daughter cells.

A tall plant (TT) is crossed with a short plant (tt). What is the genotype?
Use a punnett square to solve.
OTT: 2/4; Tt: 2/4;tt: 0/4
TT: 2/4; Tt: 1/4;tt: 1/4
TT: 0/4; Tt: 4/4;tt: 0/4
TT: 1/4; Tt: 2/4;tt: 1/4

Answers

Answer: TT: 1/4; Tt: 2/4;tt: 1/4

Explanation:

The Punnett square is a diagram that is used in the predictions of genotypes. In this scenario, if we have a tall plant (TT) is crossed with a short plant (tt), after using the Punnett square, the genotype that we will get are as follows:.

TT, Tt, Tt, tt

Therefore, the correct option is option D "TT: 1/4; Tt: 2/4;tt: 1/4

Answer: TT: 1/4; Tt: 2/4;tt: 1/4

Explanation:

The method used to artificially add water to soil is called __________.
A)
salinization
B)
cultivation
C)
irrigation
D)
compaction
E)
aquaculture

Answers

D!! Is you’re answer <33 good luck love

Answer:

C) Irrigation

Explanation:

def: artificial process of applying controlled amounts of water to land

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